Noun

1. Someone new to a field or activity
2. Someone who has been admitted to membership in a scholarly field
3. People who have been introduced to the mysteries of some field or activity

Verb

1. Bring into being
2. Take the lead or initiative in; participate in the development of
3. Accept people into an exclusive society or group, usually with some rite
4. Bring up a topic for discussion
5. Set in motion, start an event or prepare the way for